Objective This scoping review evaluates health literacy interventions for Type 2 diabetes patients,so as to provide a reference for further improvement of health literacy intervention programmes for people with type 2 diabetes mellitus.Methods Based on the Nutbeam health literacy theory as the framework,the Chinese Biomedical Literature Database,CNKI,Wanfang Database,VIP Chinese Science and Technology Journal Database,PubMed,CINAHL,MEDLINE,and Web of Science were searched for related studies by scope review.The search time limit was from the establishment of the databases to November 21,2023,and the relevant information such as intervention methods,intervention content,evaluation indicators and other relevant information of the included literature was extracted.Results A total of 15 articles were included,including 10 randomized controlled studies,4 quasi-experimental studies,and 1 experimental plan.4 studies were based on the ability,opportunity,motivation and behavior model,theory of planned behavior,Nutbeam health literacy theory and social cognitive theory and behavior stage change model,respectively.The intervention levels of the 11 studies involved functional and interactive levels,with less emphasis on the critical levels.The intervention methods were one-to-one intervention,group-focused intervention or one-to-one combined with group-focused intervention.The health literacy of 15 studies was evaluated by self-designed questionnaire,Functional,Interactive and Critical Health Literacy Scale,and Adult Functional Health Literacy Test Scale series questionnaire.Conclusion Existing interventions effectively enhance functional and interactive health literacy but have limitations in addressing critical literacy.While meeting basic needs,they do not significantly develop higher-level skills.Further research is needed to personalize interventions and improve critical health literacy.